# ISEE Primary 2 Math : Number Sense and Operations

## Example Questions

### Example Question #1 : Number Sense And Operations

David sees  apples on the apple tree. If he picks  of them, how many will be left?

Possible Answers:

Correct answer:

Explanation:

To solve this problem we will subtract because David is taking away apples.

We can start at  and count back .

### Example Question #2 : Number Sense And Operations

Subtract:

Possible Answers:

Correct answer:

Explanation:

When we subtract  from a two digit number, the only number that changes in our answer is the tens position, and it will always go down by . Mentally, we can subtract  from the number in the tens place to find our answer.

### Example Question #3 : Number Sense And Operations

Fill in the blank

, __________ ,

Possible Answers:

Correct answer:

Explanation:

In this series we are adding  each time, or counting by

, and

### Example Question #4 : Number Sense And Operations

What digit is in the ones place?

Possible Answers:

Correct answer:

Explanation:

The ones place is always the first number on the right.